140431432 has 32 divisors (see below), whose sum is σ = 278661600. Its totient is φ = 66161664.

The previous prime is 140431429. The next prime is 140431453. The reversal of 140431432 is 234134041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26943 + ... + 31729.

It is an arithmetic number, because the mean of its divisors is an integer number (8708175).

Almost surely, 2^140431432 is an apocalyptic number.

It is an amenable number.

140431432 is a deficient number, since it is larger than the sum of its proper divisors (138230168).

140431432 is a wasteful number, since it uses less digits than its factorization.

140431432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005 (or 5001 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140431432 is about 11850.3768716442. The cubic root of 140431432 is about 519.7822461048.

Adding to 140431432 its reverse (234134041), we get a palindrome (374565473).

The spelling of 140431432 in words is "one hundred forty million, four hundred thirty-one thousand, four hundred thirty-two".